Probability and Statistics Quiz

Events are equally possible if … none of them will necessarily happen as a result of a trial

• none of them will necessarily happen as a result of a trial

• there is reason to consider that none of them is more possible (probable) than other

• there is reason to consider that one of them is more possible (probable) than other

• at least one of them will necessarily happen as a result of a trial

• one of them will necessarily happen as a result of a trial

The probability of the event A is determined by the formula PA=|Ω||A|, where is the space of elementary outcomes

• PA=|Ω||A|, where is the space of elementary outcomes

• PAB=|A||B|, where is the space of elementary outcomes

• PA= A|Ω|, where is the space of elementary outcomes

• PA=λmm!e-λ, where λ is the space of elementary outcomes

• PBA=λmm!, where is the space of elementary outcomes

The probability of a reliable event is equal to …

• 1

• 0

• ½

• 1/3

• 1/5

The probability of an impossible event is equal to …

• 0

• 1

• ½

• 1/3

• 1/5

The probability of a random event is …

• the positive number between 0 and 1

• the positive number between 0 and ½

• the positive number between 0 and 10

• the positive number between 0 and 1/3

• the positive number between 0 and 1/5

The relative frequency of the event A is defined by the formula: WA=mn, where m is the number of appearances of the event, n is the total number of trials.

• WA=mn, where m is the number of appearances of the event, n is the total number of trials.

• WA=mn, where n is the number of appearances of the event, m+1 is the total number of trials.

• WA=mn, where m+1 is the number of appearances of the event, n is the total number of trials.

• WA=m+1n, where m is the number of appearances of the event, n is the total number of trials.

• WA=mn+1, where m is the number of appearances of the event, n is the total number of trials.

The number of all possible permutations

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The number of all possible allocations

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The number of all possible combinations

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The numbers of allocations, permutations and combinations are connected by the equality

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